Which UK companies does CALCULUS VCT PLC hold shares in?

CALCULUS VCT PLC holds shares in 36 active UK companies, each listed with share class, number of shares and percentage of issued capital at https://openregistry.sophymarine.com/owners/gb/07142153-calculus-vct-plc. Sourced from Companies House CS01 confirmation statements by OpenRegistry, which indexes ownership across Companies House and 26 other national registries.

How many ownership layers sit beneath CALCULUS VCT PLC?

20 companies sit beneath CALCULUS VCT PLC's direct holdings, across 3 ownership layers. OpenRegistry reconstructs the chain from members' registers at https://openregistry.sophymarine.com/owners/gb/07142153-calculus-vct-plc.

What share classes does CALCULUS VCT PLC hold?

Each holding is broken down by share class, showing the percentage of that class and of issued capital by nominal value, at https://openregistry.sophymarine.com/owners/gb/07142153-calculus-vct-plc. Programmatic access is available via MCP at https://openregistry.sophymarine.com/mcp and machine-readable site manifests at https://openregistry.sophymarine.com/llms.txt.

Where does OpenRegistry source CALCULUS VCT PLC's shareholding data?

From UK Companies House CS01 confirmation statements, with every holding traceable to the exact filing and statement date, cross-checked against the persons-with-significant-control register. The official register record is at https://find-and-update.company-information.service.gov.uk/company/07142153. OpenRegistry by Sophymarine publishes it under https://openregistry.sophymarine.com/terms.

How do I find other UK company owners like CALCULUS VCT PLC?

CALCULUS VCT PLC carries the OpenRegistry ID openregistry-gb-07142153. It is ranked #157 of 54,210 corporate shareholders by number of active UK holdings. Related corporate shareholders - those holding shares in the same companies - are linked from https://openregistry.sophymarine.com/owners/gb/07142153-calculus-vct-plc, and the full UK register of 5.6 million entities can be browsed by sector, locality, year or company type at https://openregistry.sophymarine.com/uk-companies.

OpenRegistry

CALCULUS VCT PLC

UK registered

openregistry-gb-07142153·36 UK shareholdings·3 ownership layers

CALCULUS VCT PLC is a UK-registered corporate shareholder (Companies House number 07142153) and holds shares in 36 active UK companies, recorded across 59 share-class positions on their Companies House confirmation statements (CS01). Beneath those direct holdings OpenRegistry resolves a further 20 companies spanning 3 ownership layers, of which 14 direct holdings are themselves holding companies. Sophymarine OpenRegistry ID openregistry-gb-07142153. It ranks #157 of 54,210 corporate shareholders by number of active UK holdings. Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.

Companies held
36

Share-class positions
59

Identity
UK company 07142153

Jurisdiction
UNITED KINGDOM

Ownership layers below
3

Holdings that are holding companies
14

Company profile

Companies House profile of CALCULUS VCT PLC

Shareholders

Shares held by CALCULUS VCT PLC in 36 UK companies

Ownership chain

20 companies across 3 layers beneath CALCULUS VCT PLC

Official record

Companies House record 07142153

Shareholdings

Every company CALCULUS VCT PLC appears on as a member, as filed. 36 of 36 are linked to their Companies House profile.

Company held	Status	Accounts	Share class	Shares	% of class	% of capital	Total % of capital	As of
HOME TEAM CONTENT LTDopenregistry-gb-12551108	Active	TOTAL EXEMPTION FULL	ORDINARY A	75,861	83.55%	18.38%	18.38%	2021-04-06
EDIFY SOFTWARE LIMITEDopenregistry-gb-13107360	Active	TOTAL EXEMPTION FULL	A2 ORDINARY	340,547	55.73%	12.30%	13.29%	2026-05-27
EDIFY SOFTWARE LIMITEDopenregistry-gb-13107360	Active	TOTAL EXEMPTION FULL	A3 ORDINARY	27,244	49.04%	0.98%	13.29%	2026-05-27
OPTALITIX LIMITED ▼openregistry-gb-08481722	Active	SMALL	A ORDINARY	194,310	27.32%	8.71%	10.47%	2024-11-12
			A1 ORDINARY	36,252	28.47%	1.63%
			A2 ORDINARY	2,900	25.06%	0.13%
IPV LIMITEDopenregistry-gb-05168019	Active	SMALL	A ORDINARY	21,420	19.36%	9.97%	10.43%	2025-06-29
IPV LIMITEDopenregistry-gb-05168019	Active	SMALL	ORDINARY	980	0.94%	0.46%	10.43%	2025-06-29
NOTIFY TECHNOLOGY LTDopenregistry-gb-10756960	Active	SMALL	B ORDINARY	2,855	10.30%	6.32%	8.33%	2025-05-04
			B1 ORDINARY	839	16.19%	1.86%
			B2 ORDINARY	67	14.23%	0.15%
GRTFL LIMITEDopenregistry-gb-13870259	Active	TOTAL EXEMPTION FULL	F2 ORDINARY SHARES	109,563	46.30%	7.60%	8.21%	2026-01-24
GRTFL LIMITEDopenregistry-gb-13870259	Active	TOTAL EXEMPTION FULL	F3 ORDINARY SHARES	8,765	40.74%	0.61%	8.21%	2026-01-24
BLU WIRELESS TECHNOLOGY LIMITED ▼openregistry-gb-06855929	Active	GROUP	D PREFERRED	15,304,110	4.64%	2.33%	5.16%	2025-09-05
			B ORDINARY	10,864,040	6.28%	1.66%
			ORDINARY	7,000,000	6.21%	1.07%
			A PREFERRED	700,000	1.78%	0.11%
HINTERVIEW LIMITEDopenregistry-gb-09925360			ORDINARY A	296,296	12.77%	5.02%	5.02%	2026-05-12
TOZARO LIMITEDopenregistry-gb-09484417	Active	SMALL	ORDINARY	5,829	10.59%	4.15%	4.15%	2026-03-11
WONDERHOOD LIMITEDopenregistry-gb-11015968	Active	GROUP	ORDINARY	12,687	3.25%	2.90%	2.90%	2026-03-24
INVIZIUS LIMITEDopenregistry-gb-SC586903	Active	SMALL	B ORDINARY	44,913	6.26%	2.06%	2.60%	2026-01-25
			C2 ORDINARY	10,725	100.00%	0.49%
			C3 ORDINARY	975	100.00%	0.04%
WAZOKU LIMITEDopenregistry-gb-07540637	Active	GROUP	A ORDINARY	423,420	2.58%	1.70%	2.11%	2026-02-23
WAZOKU LIMITEDopenregistry-gb-07540637	Active	GROUP	B ORDINARY	100,671	3.40%	0.40%	2.11%	2026-02-23
HUMA THERAPEUTICS LIMITED ▼openregistry-gb-07725451	Active	GROUP	ORDINARY	15,098	0.07%	0.04%	0.04%	2025-11-25
THANKSBOX LIMITEDopenregistry-gb-08652123	Active	SMALL	F1 ORDINARY SHARES	0		0.00%		2026-05-17
THANKSBOX LIMITEDopenregistry-gb-08652123	Active	SMALL	C ORDINARY	0		0.00%		2026-05-17
ECONSULT HEALTH LIMITEDopenregistry-gb-07628675	Active	AUDIT EXEMPTION SUBSIDIARY	A ORDINARY	0	0.00%	0.00%		2024-11-30
ECONSULT HEALTH LIMITEDopenregistry-gb-07628675	Active	AUDIT EXEMPTION SUBSIDIARY	B ORDINARY	0	0.00%	0.00%		2024-11-30
MONEY DASHBOARD LTDopenregistry-gb-SC301187	Active	UNAUDITED ABRIDGED	A ORDINARY	0	0.00%	0.00%		2023-02-04
ROTA GEEK LIMITEDopenregistry-gb-06783810	Active	SMALL	HURDLE SHARES	0	0.00%	0.00%		2026-01-04
ROTA GEEK LIMITEDopenregistry-gb-06783810	Active	SMALL	ORDINARY A	0	0.00%	0.00%		2026-01-04
CENSO BIOTECHNOLOGIES LTD ▼openregistry-gb-SC348293	Active	SMALL	A ORDINARY	100,086				2025-09-09
MOLOGIC LTD.openregistry-gb-04784437	Active	TOTAL EXEMPTION FULL	AB ORDINARY	0				2022-06-30
WHEELRIGHT LIMITEDopenregistry-gb-05114111	Active	SMALL	A ORDINARY	0				2025-03-10
ESSENTIA ANALYTICS LTD.openregistry-gb-07164254	Active	SMALL	B ORDINARY	93,023				2026-02-22
WEEDING TECHNOLOGIES LIMITEDopenregistry-gb-07575896			A ORDINARY	16,639				2024-07-30
RAINDOG FILMS LIMITEDopenregistry-gb-07954511	Active	TOTAL EXEMPTION FULL	ORDINARY A	9,795				2025-01-09
ARCTIC SHORES LIMITEDopenregistry-gb-08589048	Active	TOTAL EXEMPTION FULL	A1 ORDINARY	135,454				2025-06-16
ARCTIC SHORES LIMITEDopenregistry-gb-08589048	Active	TOTAL EXEMPTION FULL	A2 ORDINARY	135,454				2025-06-16
THE BOOKED IT GROUP LTDopenregistry-gb-09933601	Active	TOTAL EXEMPTION FULL	A2 ORDINARY	211,359				2026-02-28
THE BOOKED IT GROUP LTDopenregistry-gb-09933601	Active	TOTAL EXEMPTION FULL	A3 ORDINARY	16,909				2026-02-28
SMARTR365 FINANCE LTDopenregistry-gb-10487227	Active	TOTAL EXEMPTION FULL	SERIES A2	22,030				2025-11-16
SMARTR365 FINANCE LTDopenregistry-gb-10487227	Active	TOTAL EXEMPTION FULL	SERIES A3	1,763				2025-11-16
RIFF RAFF ENTERTAINMENT LIMITEDopenregistry-gb-10956747	Active	TOTAL EXEMPTION FULL	ORDINARY C 0.001 GBP	22,210				2023-09-10
ENGAGING WORKS HOLDINGS LIMITEDopenregistry-gb-12307093	Active	TOTAL EXEMPTION FULL	D2 ORDINARY SHARES	430,515				2025-11-24
ENGAGING WORKS HOLDINGS LIMITEDopenregistry-gb-12307093	Active	TOTAL EXEMPTION FULL	D3 ORDINARY SHARES	38,885				2025-11-24
EVOTERRA LIMITEDopenregistry-gb-12366320	Active	DORMANT	ORDINARY	5,619,672				2021-12-16
TAGOMICS LTDopenregistry-gb-12760846	Active	SMALL	A2 ORDINARY	581,373				2025-07-21
TAGOMICS LTDopenregistry-gb-12760846	Active	SMALL	A3 ORDINARY	52,852				2025-07-21
LAVEROCK THERAPEUTICS LIMITEDopenregistry-gb-13508159	Active	SMALL	C1 ORDINARY	366,536				2025-07-12
LAVEROCK THERAPEUTICS LIMITEDopenregistry-gb-13508159	Active	SMALL	C2 ORDINARY	350,275				2025-07-12
OXFORD BIOTHERAPEUTICS LTD ▼openregistry-gb-04974481	Active	GROUP	ORDINARY	32,234				2026-05-27
QUAI ADMINISTRATION SERVICES LIMITED ▼openregistry-gb-07584959	Active	GROUP	A ORDINARY	144,508				2026-01-18
	Active	GROUP	A ORDINARY	10,306				2026-01-18
OPEN ENERGY MARKET LIMITED ▼openregistry-gb-08264515	Active	FULL	A ORDINARY	4,264				2024-10-23
BROUHAHA ENTERTAINMENT LIMITED ▼openregistry-gb-13217602	Active	FULL	A ORDINARY	20,945				2022-02-21
ANTECH LIMITEDopenregistry-gb-02962739	Active	FULL	B ORDINARY	0				2025-01-15

Ownership structure below these holdings

20 further companies sit beneath this entity’s direct holdings, across 3 layers. Each is linked to its Companies House profile.

OPTALITIX LIMITEDopenregistry-gb-08481722
- OPTALITIX SOLUTIONS LIMITEDopenregistry-gb-09944920 ORDINARY
BLU WIRELESS TECHNOLOGY LIMITEDopenregistry-gb-06855929
- BLU WIRELESS TECHNOLOGY (EBT) LIMITEDopenregistry-gb-10948757 ORDINARY · 100.00%
  - BLU WIRELESS TECHNOLOGY LIMITEDopenregistry-gb-06855929 B ORDINARY / ORDINARY · 5.00%
HUMA THERAPEUTICS LIMITEDopenregistry-gb-07725451
- ECONSULT HEALTH LIMITEDopenregistry-gb-07628675 A ORDINARY / B ORDINARY / C ORDINARY / ORDINARY · 100.00%
- IPLATO LIMITEDopenregistry-gb-03930219 ORDINARY
  - IPLATO HEALTHCARE LIMITEDopenregistry-gb-06131747 ORDINARY
CENSO BIOTECHNOLOGIES LTDopenregistry-gb-SC348293
- AXOL BIOSCIENCE LTDopenregistry-gb-08340031 ORDINARY / ORDINARY A
OXFORD BIOTHERAPEUTICS LTDopenregistry-gb-04974481
- PROMATIX BIOSCIENCES LTDopenregistry-gb-13585400 A ORDINARY
QUAI ADMINISTRATION SERVICES LIMITEDopenregistry-gb-07584959
- QUAI INVESTMENT SERVICES LIMITEDopenregistry-gb-09919243 ORDINARY
- INTELLIGENT MONEY TRUSTEES LIMITEDopenregistry-gb-09690188 ORDINARY
  - TWIZEL CLOSE MANAGEMENT COMPANY LIMITEDopenregistry-gb-05692266 ORDINARY · 4.00%
  - NAVIGATION BUSINESS VILLAGE (PRESTON) LIMITEDopenregistry-gb-02362974 ORDINARY
  - EASTWAY BUSINESS VILLAGE (PRESTON) LIMITEDopenregistry-gb-02377011 ORDINARY
OPEN ENERGY MARKET LIMITEDopenregistry-gb-08264515
- TM CONSULTANTS LIMITEDopenregistry-gb-01829425 ORDINARY
BROUHAHA ENTERTAINMENT LIMITEDopenregistry-gb-13217602
- MAGNOLIA MAE PRODUCTIONS LIMITEDopenregistry-gb-13246023 ORDINARY
  - SWITZERLAND THE FILM LIMITEDopenregistry-gb-15050845 ORDINARY
  - MM MOTEL DESTINO PRODUCTION LIMITEDopenregistry-gb-14917498 ORDINARY
  - BROUHAHA LEE LIMITEDopenregistry-gb-13950448 ORDINARY
  - MAGNOLIA MAE FIREBRAND LIMITEDopenregistry-gb-13780627 ORDINARY
- BROUHAHA LEE LIMITEDopenregistry-gb-13950448 ORDINARY

Related company owners

Corporate shareholders that hold shares in the same UK companies as CALCULUS VCT PLC:

MOULTON GOODIES LIMITEDopenregistry-gb-OE001325 18 shared holdings
TRUEPEARL LIMITEDopenregistry-gb-OE024813 16 shared holdings
NORTHERN VENTURE TRUST PLCopenregistry-gb-03090163 14 shared holdings
NORTHERN 2 VCT PLCopenregistry-gb-03695071 14 shared holdings
NORTHERN 3 VCT PLCopenregistry-gb-04280530 14 shared holdings
OLD COLLEGE CAPITAL LPopenregistry-gb-SL009405 9 shared holdings

Other corporate shareholders of comparable size registered in UNITED KINGDOM:

BREEDON TRADING LIMITEDopenregistry-gb-00156531 32 UK holdings
RODERICKS DENTAL PARTNERS LIMITEDopenregistry-gb-00190237 32 UK holdings
A.R. & V.INVESTMENTS LIMITEDopenregistry-gb-00632484 32 UK holdings
BARCLAYS BANK PLCopenregistry-gb-01026167 32 UK holdings

▼ marks a holding that itself holds shares in further companies, so ownership continues below it.

“% of capital” is the entity’s share of issued capital by nominal value, the correct basis when a company has multiple share classes.

Figures are as filed on each company’s most recent confirmation statement; the “As of” column gives that statement date. Source: Companies House Free Company Data and CS01 confirmation statements. Official record: find-and-update.company-information.service.gov.uk.